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自动排气阀 zìdòng páiqìfá
archit. automatic air valve; automatical air valve
railw. automatic air evacuation valve
refrig. automatic vent
sol.pow. auto air vent
tech. automatic air bleed valve; automatic ball valve; automatic exhaust air valve; automatic exhaust steam valve
自动排气阀: 1 phrase in 1 subject
Refrigeration1